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Bar chart with linear x scale
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| hours | votes | |
|---|---|---|
| 0 | 3 | |
| 1 | 5 | |
| 2 | 3 | |
| 3 | 7 | |
| 4 | 1 | |
| 5 | 5 | |
| 6 | 0 | |
| 7 | 6 | |
| 8 | 4 | |
| 9 | 2 | |
| 10 | 1 | |
| 11 | 8 | |
| 12 | 2 |
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| <!doctype html> | |
| <meta charset="utf-8"> | |
| <style> | |
| rect { | |
| fill: steelblue; | |
| } | |
| .axis { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 30, left: 40}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var x = d3.scale.linear(); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.csv("data.csv", type, function (error, data) { | |
| x | |
| .domain(d3.extent(data, function (d) { return d.hours; })) | |
| .range([width / data.length / 2, width - width / data.length / 2]) | |
| y | |
| .domain([0, d3.max(data, function (d) { return d.votes; })]); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| svg.selectAll("rect") | |
| .data(data) | |
| .enter().append("rect") | |
| .attr("x", function (d) { return (x(d.hours) - width / data.length / 2) + 1; }) | |
| .attr("width", (width / data.length) - 1) | |
| .attr("y", function (d) { return y(d.votes); }) | |
| .attr("height", function (d) { return height - y(d.votes); }); | |
| }); | |
| function type (d) { | |
| d.hours = +d.hours; | |
| d.votes = +d.votes; | |
| return d; | |
| } | |
| </script> | |
| </body> |
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